Corporate Document Certification in Siam Square One
Licensed Thai Notarial Services Attorney serving the Siam Square One area (Siam BTS) — from THB 2,500, completed same day.
- From
- ฿2,500
- Time
- 30 min
- Customer satisfaction
- 4.9/5 (655 cases (internal survey))
- License
- Lawyers Council
- Area
- Siam Square One
- Call
- +66 94-895-8999
Siam Square One is one of our most-served areas for Corporate Document Certification. Our attorneys are registered Notarial Services Attorneys with the Lawyers Council of Thailand. Service starts at THB 2,500 with same-day completion, plus optional MFA + embassy legalization for use in 190+ countries. We offer both office appointments and on-site attorney visits within the Siam Square One area.
Pricing: from THB 2,500 — up to THB 8,000 — Service by NYC Legal & Notary Service Co., Ltd., DBD reg. 0435567000061
ทีมทนาย Notary Public ที่จดทะเบียนถูกต้อง 6 ท่าน
Why clients in Siam Square One choose NPT
- Attorneys travel from our HQ on Lat Phrao 95 to Siam Square One within 60 minutes
- Notarization compliant with Lawyers Council of Thailand standards, accepted by MFA + 190+ embassies
- 30+ languages supported including English, Japanese, Chinese, Korean, German, French
- One-stop service: notarization + translation + MFA legalization + embassy attestation
- Over 1,000 clients per year served in the Siam Square One area for Corporate Document Certification
Service in nearby locations
We serve all nearby districts — click for area-specific pricing and process.
Other areas served for Corporate Document Certification
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Book Corporate Document Certification in Siam Square One
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Real customer questions, answered by our attorneys
Selected from our knowledge base of 3,300+ real questions we have answered.
Are NAATI certified translations accepted alongside Thai consular legalization?
Quick summary for expats, HR and law firms to "Are NAATI certified translations accepted alongside Thai consular legalization?" — Standard outbound chain: original from the issuing Thai authority → certified English translation → MFA certification of the translation/signature → destination-embassy legalisation in Bangkok (only for non-Apostille countries). Typical documents: house registration, birth/marriage/divorce certificates, name-change records, death certificates, single-status letters, police clearance, degrees and transcripts, company affidavits, VAT Por.Por.20, financial statements, powers of attorney and cross-border contracts. Free consultation on LINE @Thainotary or call 094-895-8999 (Mon–Sun 08:00–20:00 ICT).
Related service: Embassy legalisationWhat consular pathways govern foreign oceanographic research vessel entry permits?
Practitioner's view to "What consular pathways govern foreign oceanographic research vessel entry permits?" — Standard outbound chain: original from the issuing Thai authority → certified English translation → MFA certification of the translation/signature → destination-embassy legalisation in Bangkok (only for non-Apostille countries). Typical documents: house registration, birth/marriage/divorce certificates, name-change records, death certificates, single-status letters, police clearance, degrees and transcripts, company affidavits, VAT Por.Por.20, financial statements, powers of attorney and cross-border contracts. Send a photo of the document to LINE @Thainotary and we will quote the chain, cost and timeline within 15 minutes.
Related service: MFA consular legalisationHow do foreign earthquake and seismic monitoring station data agreements undergo review?
Per the Legalization Division, Department of Consular Affairs (MFA Thailand) to "How do foreign earthquake and seismic monitoring station data agreements undergo review?" — Standard outbound chain: original from the issuing Thai authority → certified English translation → MFA certification of the translation/signature → destination-embassy legalisation in Bangkok (only for non-Apostille countries). Typical documents: house registration, birth/marriage/divorce certificates, name-change records, death certificates, single-status letters, police clearance, degrees and transcripts, company affidavits, VAT Por.Por.20, financial statements, powers of attorney and cross-border contracts. Send a photo of the document to LINE @Thainotary and we will quote the chain, cost and timeline within 15 minutes.
Related service: Embassy legalisationHow to notarize an Affidavit of Freedom to Marry for foreigners in Thailand?
Quick summary for expats to "How to notarize an Affidavit of Freedom to Marry for foreigners in Thailand?" — In Thailand notarial services are performed by a Notarial Services Attorney registered with the Lawyers Council of Thailand — the document is then eligible for MFA legalization or Apostille (in force since 14 February 2025) before use overseas. Standard turnaround is 1 business day; same-day service is available by appointment for straightforward files. Free consultation on LINE @Thainotary or call 094-895-8999 (Mon–Sun 08:00–20:00 ICT).
Related service: Notary Public ThailandHow do international telecommunication spectrum license agreements undergo review?
Practitioner's view to "How do international telecommunication spectrum license agreements undergo review?" — Typical documents: house registration, birth/marriage/divorce certificates, name-change records, death certificates, single-status letters, police clearance, degrees and transcripts, company affidavits, VAT Por.Por.20, financial statements, powers of attorney and cross-border contracts. Government fee is THB 200 per stamp for the normal service (2–3 business days) and THB 400 per stamp for same-day express (file before 11:30). Our end-to-end agency fee starts at THB 1,500–4,500 per set depending on volume and urgency. Free consultation on LINE @Thainotary or call 094-895-8999 (Mon–Sun 08:00–20:00 ICT).
Related service: NAATI translationWhat legalized single-status records are required for international marriages registered in Thailand?
Practitioner's view to "What legalized single-status records are required for international marriages registered in Thailand?" — Typical documents: house registration, birth/marriage/divorce certificates, name-change records, death certificates, single-status letters, police clearance, degrees and transcripts, company affidavits, VAT Por.Por.20, financial statements, powers of attorney and cross-border contracts. Government fee is THB 200 per stamp for the normal service (2–3 business days) and THB 400 per stamp for same-day express (file before 11:30). Our end-to-end agency fee starts at THB 1,500–4,500 per set depending on volume and urgency. Send a photo of the document to LINE @Thainotary and we will quote the chain, cost and timeline within 15 minutes.
Related service: Marriage registrationHow do foreign petrochemical refinery safety audit certificates undergo MFA review?
Quick summary for expats, HR and law firms to "How do foreign petrochemical refinery safety audit certificates undergo MFA review?" — Standard outbound chain: original from the issuing Thai authority → certified English translation → MFA certification of the translation/signature → destination-embassy legalisation in Bangkok (only for non-Apostille countries). Typical documents: house registration, birth/marriage/divorce certificates, name-change records, death certificates, single-status letters, police clearance, degrees and transcripts, company affidavits, VAT Por.Por.20, financial statements, powers of attorney and cross-border contracts. Free consultation on LINE @Thainotary or call 094-895-8999 (Mon–Sun 08:00–20:00 ICT).
Related service: MFA consular legalisationWhat foreign financial proofs are required for Thailand Destination Thailand (DTV) Visas?
Per the Legalization Division, Department of Consular Affairs (MFA Thailand) to "What foreign financial proofs are required for Thailand Destination Thailand (DTV) Visas?" — Standard outbound chain: original from the issuing Thai authority → certified English translation → MFA certification of the translation/signature → destination-embassy legalisation in Bangkok (only for non-Apostille countries). Typical documents: house registration, birth/marriage/divorce certificates, name-change records, death certificates, single-status letters, police clearance, degrees and transcripts, company affidavits, VAT Por.Por.20, financial statements, powers of attorney and cross-border contracts. Send a photo of the document to LINE @Thainotary and we will quote the chain, cost and timeline within 15 minutes.
Related service: Embassy legalisationKey facts at a glance — Notary Public certification
- Indicative price
- From THB 800–3,000 per document set
- Turnaround
- Typically 1–2 business days (same-day rush available)
- What you receive
- Signed and sealed by a Thai Lawyers Council–registered Notarial Services Attorney
- Service coverage
- Nationwide Thailand — courier and fully online intake, no in-person visit required.
Figures above are indicative ranges; the final quote depends on page count, language pair and receiving authority.
Ask us or request a quote right away
Documents you need to prepare — Notary Public certification
- 1Valid original passport or Thai ID card of the person signing
- 2The original document to be notarised — do not sign in advance; signing must occur before the attorney
- 3Details of the receiving authority — university, embassy, or overseas counterparty
- 4Company affidavit and power of attorney if signing for a legal entity
Before you start
- • Keep a copy of everything submitted in case the receiving authority requests further evidence later.
- • Always confirm the receiving body's own formatting rules — requirements differ between institutions.
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